/*
* Copyright (c) 2024 Huawei Device Co., Ltd.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

/*
* FAQ:如何判断是否为主线程
*/

// [Start IsMainThread2]
#include <unistd.h> 
#include <thread> 
#include <sys/syscall.h> 
 
bool isMainThread() { 
  pid_t pid = getpid(); 
  pid_t tid = syscall(SYS_gettid); 
  if (pid == tid) { 
    return true; 
  } else { 
    return false; 
  } 
}
// [End IsMainThread2]

